| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Ard Biesheuvel | 2357 | 97.72% | 23 | 85.19% |
| Ingo Molnar | 39 | 1.62% | 1 | 3.70% |
| Arvind Sankar | 10 | 0.41% | 1 | 3.70% |
| Lenny Szubowicz | 5 | 0.21% | 1 | 3.70% |
| Greg Kroah-Hartman | 1 | 0.04% | 1 | 3.70% |
| Total | 2412 | 27 |
/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _DRIVERS_FIRMWARE_EFI_EFISTUB_H #define _DRIVERS_FIRMWARE_EFI_EFISTUB_H /* error code which can't be mistaken for valid address */ #define EFI_ERROR (~0UL) /* * __init annotations should not be used in the EFI stub, since the code is * either included in the decompressor (x86, ARM) where they have no effect, * or the whole stub is __init annotated at the section level (arm64), by * renaming the sections, in which case the __init annotation will be * redundant, and will result in section names like .init.init.text, and our * linker script does not expect that. */ #undef __init /* * Allow the platform to override the allocation granularity: this allows * systems that have the capability to run with a larger page size to deal * with the allocations for initrd and fdt more efficiently. */ #ifndef EFI_ALLOC_ALIGN #define EFI_ALLOC_ALIGN EFI_PAGE_SIZE #endif #if defined(CONFIG_ARM) || defined(CONFIG_X86) #define __efistub_global __section(.data) #else #define __efistub_global #endif extern bool __pure nochunk(void); extern bool __pure nokaslr(void); extern bool __pure noinitrd(void); extern bool __pure is_quiet(void); extern bool __pure novamap(void); extern __pure efi_system_table_t *efi_system_table(void); #define pr_efi(msg) do { \ if (!is_quiet()) efi_printk("EFI stub: "msg); \ } while (0) #define pr_efi_err(msg) efi_printk("EFI stub: ERROR: "msg) /* Helper macros for the usual case of using simple C variables: */ #ifndef fdt_setprop_inplace_var #define fdt_setprop_inplace_var(fdt, node_offset, name, var) \ fdt_setprop_inplace((fdt), (node_offset), (name), &(var), sizeof(var)) #endif #ifndef fdt_setprop_var #define fdt_setprop_var(fdt, node_offset, name, var) \ fdt_setprop((fdt), (node_offset), (name), &(var), sizeof(var)) #endif #define get_efi_var(name, vendor, ...) \ efi_rt_call(get_variable, (efi_char16_t *)(name), \ (efi_guid_t *)(vendor), __VA_ARGS__) #define set_efi_var(name, vendor, ...) \ efi_rt_call(set_variable, (efi_char16_t *)(name), \ (efi_guid_t *)(vendor), __VA_ARGS__) #define efi_get_handle_at(array, idx) \ (efi_is_native() ? (array)[idx] \ : (efi_handle_t)(unsigned long)((u32 *)(array))[idx]) #define efi_get_handle_num(size) \ ((size) / (efi_is_native() ? sizeof(efi_handle_t) : sizeof(u32))) #define for_each_efi_handle(handle, array, size, i) \ for (i = 0; \ i < efi_get_handle_num(size) && \ ((handle = efi_get_handle_at((array), i)) || true); \ i++) /* * Allocation types for calls to boottime->allocate_pages. */ #define EFI_ALLOCATE_ANY_PAGES 0 #define EFI_ALLOCATE_MAX_ADDRESS 1 #define EFI_ALLOCATE_ADDRESS 2 #define EFI_MAX_ALLOCATE_TYPE 3 /* * The type of search to perform when calling boottime->locate_handle */ #define EFI_LOCATE_ALL_HANDLES 0 #define EFI_LOCATE_BY_REGISTER_NOTIFY 1 #define EFI_LOCATE_BY_PROTOCOL 2 /* * An efi_boot_memmap is used by efi_get_memory_map() to return the * EFI memory map in a dynamically allocated buffer. * * The buffer allocated for the EFI memory map includes extra room for * a minimum of EFI_MMAP_NR_SLACK_SLOTS additional EFI memory descriptors. * This facilitates the reuse of the EFI memory map buffer when a second * call to ExitBootServices() is needed because of intervening changes to * the EFI memory map. Other related structures, e.g. x86 e820ext, need * to factor in this headroom requirement as well. */ #define EFI_MMAP_NR_SLACK_SLOTS 8 struct efi_boot_memmap { efi_memory_desc_t **map; unsigned long *map_size; unsigned long *desc_size; u32 *desc_ver; unsigned long *key_ptr; unsigned long *buff_size; }; typedef struct efi_generic_dev_path efi_device_path_protocol_t; /* * EFI Boot Services table */ union efi_boot_services { struct { efi_table_hdr_t hdr; void *raise_tpl; void *restore_tpl; efi_status_t (__efiapi *allocate_pages)(int, int, unsigned long, efi_physical_addr_t *); efi_status_t (__efiapi *free_pages)(efi_physical_addr_t, unsigned long); efi_status_t (__efiapi *get_memory_map)(unsigned long *, void *, unsigned long *, unsigned long *, u32 *); efi_status_t (__efiapi *allocate_pool)(int, unsigned long, void **); efi_status_t (__efiapi *free_pool)(void *); void *create_event; void *set_timer; void *wait_for_event; void *signal_event; void *close_event; void *check_event; void *install_protocol_interface; void *reinstall_protocol_interface; void *uninstall_protocol_interface; efi_status_t (__efiapi *handle_protocol)(efi_handle_t, efi_guid_t *, void **); void *__reserved; void *register_protocol_notify; efi_status_t (__efiapi *locate_handle)(int, efi_guid_t *, void *, unsigned long *, efi_handle_t *); efi_status_t (__efiapi *locate_device_path)(efi_guid_t *, efi_device_path_protocol_t **, efi_handle_t *); efi_status_t (__efiapi *install_configuration_table)(efi_guid_t *, void *); void *load_image; void *start_image; efi_status_t __noreturn (__efiapi *exit)(efi_handle_t, efi_status_t, unsigned long, efi_char16_t *); void *unload_image; efi_status_t (__efiapi *exit_boot_services)(efi_handle_t, unsigned long); void *get_next_monotonic_count; void *stall; void *set_watchdog_timer; void *connect_controller; efi_status_t (__efiapi *disconnect_controller)(efi_handle_t, efi_handle_t, efi_handle_t); void *open_protocol; void *close_protocol; void *open_protocol_information; void *protocols_per_handle; void *locate_handle_buffer; efi_status_t (__efiapi *locate_protocol)(efi_guid_t *, void *, void **); void *install_multiple_protocol_interfaces; void *uninstall_multiple_protocol_interfaces; void *calculate_crc32; void *copy_mem; void *set_mem; void *create_event_ex; }; struct { efi_table_hdr_t hdr; u32 raise_tpl; u32 restore_tpl; u32 allocate_pages; u32 free_pages; u32 get_memory_map; u32 allocate_pool; u32 free_pool; u32 create_event; u32 set_timer; u32 wait_for_event; u32 signal_event; u32 close_event; u32 check_event; u32 install_protocol_interface; u32 reinstall_protocol_interface; u32 uninstall_protocol_interface; u32 handle_protocol; u32 __reserved; u32 register_protocol_notify; u32 locate_handle; u32 locate_device_path; u32 install_configuration_table; u32 load_image; u32 start_image; u32 exit; u32 unload_image; u32 exit_boot_services; u32 get_next_monotonic_count; u32 stall; u32 set_watchdog_timer; u32 connect_controller; u32 disconnect_controller; u32 open_protocol; u32 close_protocol; u32 open_protocol_information; u32 protocols_per_handle; u32 locate_handle_buffer; u32 locate_protocol; u32 install_multiple_protocol_interfaces; u32 uninstall_multiple_protocol_interfaces; u32 calculate_crc32; u32 copy_mem; u32 set_mem; u32 create_event_ex; } mixed_mode; }; typedef union efi_uga_draw_protocol efi_uga_draw_protocol_t; union efi_uga_draw_protocol { struct { efi_status_t (__efiapi *get_mode)(efi_uga_draw_protocol_t *, u32*, u32*, u32*, u32*); void *set_mode; void *blt; }; struct { u32 get_mode; u32 set_mode; u32 blt; } mixed_mode; }; union efi_simple_text_output_protocol { struct { void *reset; efi_status_t (__efiapi *output_string)(efi_simple_text_output_protocol_t *, efi_char16_t *); void *test_string; }; struct { u32 reset; u32 output_string; u32 test_string; } mixed_mode; }; #define PIXEL_RGB_RESERVED_8BIT_PER_COLOR 0 #define PIXEL_BGR_RESERVED_8BIT_PER_COLOR 1 #define PIXEL_BIT_MASK 2 #define PIXEL_BLT_ONLY 3 #define PIXEL_FORMAT_MAX 4 typedef struct { u32 red_mask; u32 green_mask; u32 blue_mask; u32 reserved_mask; } efi_pixel_bitmask_t; typedef struct { u32 version; u32 horizontal_resolution; u32 vertical_resolution; int pixel_format; efi_pixel_bitmask_t pixel_information; u32 pixels_per_scan_line; } efi_graphics_output_mode_info_t; typedef union efi_graphics_output_protocol_mode efi_graphics_output_protocol_mode_t; union efi_graphics_output_protocol_mode { struct { u32 max_mode; u32 mode; efi_graphics_output_mode_info_t *info; unsigned long size_of_info; efi_physical_addr_t frame_buffer_base; unsigned long frame_buffer_size; }; struct { u32 max_mode; u32 mode; u32 info; u32 size_of_info; u64 frame_buffer_base; u32 frame_buffer_size; } mixed_mode; }; typedef union efi_graphics_output_protocol efi_graphics_output_protocol_t; union efi_graphics_output_protocol { struct { void *query_mode; void *set_mode; void *blt; efi_graphics_output_protocol_mode_t *mode; }; struct { u32 query_mode; u32 set_mode; u32 blt; u32 mode; } mixed_mode; }; typedef union { struct { u32 revision; efi_handle_t parent_handle; efi_system_table_t *system_table; efi_handle_t device_handle; void *file_path; void *reserved; u32 load_options_size; void *load_options; void *image_base; __aligned_u64 image_size; unsigned int image_code_type; unsigned int image_data_type; efi_status_t (__efiapi *unload)(efi_handle_t image_handle); }; struct { u32 revision; u32 parent_handle; u32 system_table; u32 device_handle; u32 file_path; u32 reserved; u32 load_options_size; u32 load_options; u32 image_base; __aligned_u64 image_size; u32 image_code_type; u32 image_data_type; u32 unload; } mixed_mode; } efi_loaded_image_t; typedef struct { u64 size; u64 file_size; u64 phys_size; efi_time_t create_time; efi_time_t last_access_time; efi_time_t modification_time; __aligned_u64 attribute; efi_char16_t filename[]; } efi_file_info_t; typedef struct efi_file_protocol efi_file_protocol_t; struct efi_file_protocol { u64 revision; efi_status_t (__efiapi *open) (efi_file_protocol_t *, efi_file_protocol_t **, efi_char16_t *, u64, u64); efi_status_t (__efiapi *close) (efi_file_protocol_t *); efi_status_t (__efiapi *delete) (efi_file_protocol_t *); efi_status_t (__efiapi *read) (efi_file_protocol_t *, unsigned long *, void *); efi_status_t (__efiapi *write) (efi_file_protocol_t *, unsigned long, void *); efi_status_t (__efiapi *get_position)(efi_file_protocol_t *, u64 *); efi_status_t (__efiapi *set_position)(efi_file_protocol_t *, u64); efi_status_t (__efiapi *get_info) (efi_file_protocol_t *, efi_guid_t *, unsigned long *, void *); efi_status_t (__efiapi *set_info) (efi_file_protocol_t *, efi_guid_t *, unsigned long, void *); efi_status_t (__efiapi *flush) (efi_file_protocol_t *); }; typedef struct efi_simple_file_system_protocol efi_simple_file_system_protocol_t; struct efi_simple_file_system_protocol { u64 revision; int (__efiapi *open_volume)(efi_simple_file_system_protocol_t *, efi_file_protocol_t **); }; #define EFI_FILE_MODE_READ 0x0000000000000001 #define EFI_FILE_MODE_WRITE 0x0000000000000002 #define EFI_FILE_MODE_CREATE 0x8000000000000000 typedef enum { EfiPciIoWidthUint8, EfiPciIoWidthUint16, EfiPciIoWidthUint32, EfiPciIoWidthUint64, EfiPciIoWidthFifoUint8, EfiPciIoWidthFifoUint16, EfiPciIoWidthFifoUint32, EfiPciIoWidthFifoUint64, EfiPciIoWidthFillUint8, EfiPciIoWidthFillUint16, EfiPciIoWidthFillUint32, EfiPciIoWidthFillUint64, EfiPciIoWidthMaximum } EFI_PCI_IO_PROTOCOL_WIDTH; typedef enum { EfiPciIoAttributeOperationGet, EfiPciIoAttributeOperationSet, EfiPciIoAttributeOperationEnable, EfiPciIoAttributeOperationDisable, EfiPciIoAttributeOperationSupported, EfiPciIoAttributeOperationMaximum } EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION; typedef struct { u32 read; u32 write; } efi_pci_io_protocol_access_32_t; typedef union efi_pci_io_protocol efi_pci_io_protocol_t; typedef efi_status_t (__efiapi *efi_pci_io_protocol_cfg_t)(efi_pci_io_protocol_t *, EFI_PCI_IO_PROTOCOL_WIDTH, u32 offset, unsigned long count, void *buffer); typedef struct { void *read; void *write; } efi_pci_io_protocol_access_t; typedef struct { efi_pci_io_protocol_cfg_t read; efi_pci_io_protocol_cfg_t write; } efi_pci_io_protocol_config_access_t; union efi_pci_io_protocol { struct { void *poll_mem; void *poll_io; efi_pci_io_protocol_access_t mem; efi_pci_io_protocol_access_t io; efi_pci_io_protocol_config_access_t pci; void *copy_mem; void *map; void *unmap; void *allocate_buffer; void *free_buffer; void *flush; efi_status_t (__efiapi *get_location)(efi_pci_io_protocol_t *, unsigned long *segment_nr, unsigned long *bus_nr, unsigned long *device_nr, unsigned long *func_nr); void *attributes; void *get_bar_attributes; void *set_bar_attributes; uint64_t romsize; void *romimage; }; struct { u32 poll_mem; u32 poll_io; efi_pci_io_protocol_access_32_t mem; efi_pci_io_protocol_access_32_t io; efi_pci_io_protocol_access_32_t pci; u32 copy_mem; u32 map; u32 unmap; u32 allocate_buffer; u32 free_buffer; u32 flush; u32 get_location; u32 attributes; u32 get_bar_attributes; u32 set_bar_attributes; u64 romsize; u32 romimage; } mixed_mode; }; #define EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO 0x0001 #define EFI_PCI_IO_ATTRIBUTE_ISA_IO 0x0002 #define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO 0x0004 #define EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY 0x0008 #define EFI_PCI_IO_ATTRIBUTE_VGA_IO 0x0010 #define EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO 0x0020 #define EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO 0x0040 #define EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE 0x0080 #define EFI_PCI_IO_ATTRIBUTE_IO 0x0100 #define EFI_PCI_IO_ATTRIBUTE_MEMORY 0x0200 #define EFI_PCI_IO_ATTRIBUTE_BUS_MASTER 0x0400 #define EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED 0x0800 #define EFI_PCI_IO_ATTRIBUTE_MEMORY_DISABLE 0x1000 #define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_DEVICE 0x2000 #define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM 0x4000 #define EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE 0x8000 #define EFI_PCI_IO_ATTRIBUTE_ISA_IO_16 0x10000 #define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16 0x20000 #define EFI_PCI_IO_ATTRIBUTE_VGA_IO_16 0x40000 struct efi_dev_path; typedef union apple_properties_protocol apple_properties_protocol_t; union apple_properties_protocol { struct { unsigned long version; efi_status_t (__efiapi *get)(apple_properties_protocol_t *, struct efi_dev_path *, efi_char16_t *, void *, u32 *); efi_status_t (__efiapi *set)(apple_properties_protocol_t *, struct efi_dev_path *, efi_char16_t *, void *, u32); efi_status_t (__efiapi *del)(apple_properties_protocol_t *, struct efi_dev_path *, efi_char16_t *); efi_status_t (__efiapi *get_all)(apple_properties_protocol_t *, void *buffer, u32 *); }; struct { u32 version; u32 get; u32 set; u32 del; u32 get_all; } mixed_mode; }; typedef u32 efi_tcg2_event_log_format; typedef union efi_tcg2_protocol efi_tcg2_protocol_t; union efi_tcg2_protocol { struct { void *get_capability; efi_status_t (__efiapi *get_event_log)(efi_handle_t, efi_tcg2_event_log_format, efi_physical_addr_t *, efi_physical_addr_t *, efi_bool_t *); void *hash_log_extend_event; void *submit_command; void *get_active_pcr_banks; void *set_active_pcr_banks; void *get_result_of_set_active_pcr_banks; }; struct { u32 get_capability; u32 get_event_log; u32 hash_log_extend_event; u32 submit_command; u32 get_active_pcr_banks; u32 set_active_pcr_banks; u32 get_result_of_set_active_pcr_banks; } mixed_mode; }; typedef union efi_load_file_protocol efi_load_file_protocol_t; typedef union efi_load_file_protocol efi_load_file2_protocol_t; union efi_load_file_protocol { struct { efi_status_t (__efiapi *load_file)(efi_load_file_protocol_t *, efi_device_path_protocol_t *, bool, unsigned long *, void *); }; struct { u32 load_file; } mixed_mode; }; void efi_pci_disable_bridge_busmaster(void); typedef efi_status_t (*efi_exit_boot_map_processing)( struct efi_boot_memmap *map, void *priv); efi_status_t efi_exit_boot_services(void *handle, struct efi_boot_memmap *map, void *priv, efi_exit_boot_map_processing priv_func); void efi_char16_printk(efi_char16_t *); efi_status_t allocate_new_fdt_and_exit_boot(void *handle, unsigned long *new_fdt_addr, unsigned long max_addr, u64 initrd_addr, u64 initrd_size, char *cmdline_ptr, unsigned long fdt_addr, unsigned long fdt_size); void *get_fdt(unsigned long *fdt_size); void efi_get_virtmap(efi_memory_desc_t *memory_map, unsigned long map_size, unsigned long desc_size, efi_memory_desc_t *runtime_map, int *count); efi_status_t efi_get_random_bytes(unsigned long size, u8 *out); efi_status_t efi_random_alloc(unsigned long size, unsigned long align, unsigned long *addr, unsigned long random_seed); efi_status_t check_platform_features(void); void *get_efi_config_table(efi_guid_t guid); void efi_printk(char *str); void efi_free(unsigned long size, unsigned long addr); char *efi_convert_cmdline(efi_loaded_image_t *image, int *cmd_line_len, unsigned long max_addr); efi_status_t efi_get_memory_map(struct efi_boot_memmap *map); efi_status_t efi_low_alloc_above(unsigned long size, unsigned long align, unsigned long *addr, unsigned long min); static inline efi_status_t efi_low_alloc(unsigned long size, unsigned long align, unsigned long *addr) { /* * Don't allocate at 0x0. It will confuse code that * checks pointers against NULL. Skip the first 8 * bytes so we start at a nice even number. */ return efi_low_alloc_above(size, align, addr, 0x8); } efi_status_t efi_allocate_pages(unsigned long size, unsigned long *addr, unsigned long max); efi_status_t efi_relocate_kernel(unsigned long *image_addr, unsigned long image_size, unsigned long alloc_size, unsigned long preferred_addr, unsigned long alignment, unsigned long min_addr); efi_status_t efi_parse_options(char const *cmdline); efi_status_t efi_setup_gop(struct screen_info *si, efi_guid_t *proto, unsigned long size); efi_status_t efi_load_dtb(efi_loaded_image_t *image, unsigned long *load_addr, unsigned long *load_size); efi_status_t efi_load_initrd(efi_loaded_image_t *image, unsigned long *load_addr, unsigned long *load_size, unsigned long soft_limit, unsigned long hard_limit); efi_status_t efi_load_initrd_dev_path(unsigned long *load_addr, unsigned long *load_size, unsigned long max); #endif
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